Planetary hours
in Sayyān.
The day, from sunrise to sunset, is cut into twelve equal hours; so is the night, from sunset to the next sunrise. Each hour carries a planet, in the Chaldean order. A planetary hour therefore lasts 60 minutes only at the equinoxes: it all depends on the date and the city. Here are the exact hours for your city; what you do with them is up to you.
Planetary day of Friday, 15 January 2027: day of Venus
- Sunrise
- 06:32
- Sunset
- 17:51
- Next sunrise
- 06:32
A day hour lasts 57 min; a night hour, 1h 03m. Local time (Asia/Aden).
Day
- 1♀︎ Venus06:32 – 07:28
- 2☿︎ Mercury07:28 – 08:25
- 3☽︎ Moon08:25 – 09:22
- 4♄︎ Saturn09:22 – 10:18
- 5♃︎ Jupiter10:18 – 11:15
- 6♂︎ Mars11:15 – 12:12
- 7☉︎ Sun12:12 – 13:08
- 8♀︎ Venus13:08 – 14:05
- 9☿︎ Mercury14:05 – 15:01
- 10☽︎ Moon15:01 – 15:58
- 11♄︎ Saturn15:58 – 16:55
- 12♃︎ Jupiter16:55 – 17:51
Night
- 1♂︎ Mars17:51 – 18:55
- 2☉︎ Sun18:55 – 19:58
- 3♀︎ Venus19:58 – 21:01
- 4☿︎ Mercury21:01 – 22:05
- 5☽︎ Moon22:05 – 23:08
- 6♄︎ Saturn23:08 – 00:12
- 7♃︎ Jupiter00:12 – 01:15
- 8♂︎ Mars01:15 – 02:18
- 9☉︎ Sun02:18 – 03:22
- 10♀︎ Venus03:22 – 04:25
- 11☿︎ Mercury04:25 – 05:29
- 12☽︎ Moon05:29 – 06:32
Questions
How are the planetary hours calculated in Sayyān?
On Friday, 15 January 2027, the Sun rises at 06:32 and sets at 17:51: the day lasts 11h 19m, that is twelve day hours of 57 min. The night, until the next sunrise at 06:32, lasts 12h 41m: twelve night hours of 1h 03m.
Which planet rules the first hour that day?
Venus, from 06:32 to 07:28: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus again.
Today’s sky, on YOUR chart
Planetary hours are the same for everyone in a city. Your chart is yours alone: every morning AstroXP crosses the real sky with your birth, to the minute, and tells you what time it plays out for you.
On a computer? Scan this code with your phone.
Calendars
Sunrise and sunset calculated for the city (the Sun’s centre 0°50′ below the horizon: refraction and semi-diameter), local time of the city’s time zone. Checked against astronomy-engine, the app’s engine.